Window-screen.



P. 1. WOLFE. WINDOW SCREEN. APPLICATION FILED JULY ll. I916- Pat entedJune 12, 1917.

m: NnRRIS PETEkS 0a.. Pnom-urua. wasuuvc mu. :1 c

PETER J. WOLFE, OF COLUMBUS, Ol-IIO.

WINDOW-SCREEN;

reaaees.

Specification of Letters Patent.

Patented June 12, 191 3.

Application filed July 11, 1916. Serial No. 108,685.

To aZZ whom it may concern:

Be it known that I, PETER J. WOLFE, a citizen of the United States,residing at Columbus, in the county of Franklin and State of Ohio, haveinvented certain new and useful Improvements in Window- Screens, ofwhich the following is a specification.

This invention relates to window screens and is particularly directed toan improved type of structure whereby the screen may be made extensibleto a slight degree to cause it to tightly fit a window frame. By thisarrangement, the screen may be placed in its applied position and heldtherein with comparative security, as well as closing the entire windowopening to prevent admission of flies.

Another object of my invention resides in a peculiar type of lockingmeans whereby the extensible side portion of the screen maybe locked inits extended position, to thereby render it diflicult to remove thescreen from the outside of the window, it being understood that thelocking structure is normally disposed on the inside.

The preferred embodiment of my invention is shown in the accompanyingsheet of drawings, in which similar characters of reference designatecorresponding parts, and in which:

Figure 1 is a face view of my improved type of screen shown in itsposition in a window frame.

Fig. 2 is an enlarged view of a portion of the screen shown partially insection.

Fig. 3 is an enlarged section taken on line 33 of Fig. 2, and,

Fig. a is an enlarged fragmentary perspective showing the lockingstructure in detail.

In the drawings, I have designated the window frame structure in itsentirety by the reference numeral 1, the lower sash being shown aselevated with the screen in position. The screen comprises a rectangularframework 2, to which is suitably scoured the screen material 3. Alongone of the side rails 4': of the body framework, I have provided aU-shaped channel member 5 which slidably embraces the same, as is shown.This channel member is preferably provided with transverse slots such asare shown at 6, through which the pins or screws 7 rigidly carried bythe side rail l, may operate. By means of this pin and slot connection,the channel member 5 is guided in its lateral movement. It is customaryto make the body framework slightly less in width than the space inwhich it is adapted to fit and in order to fill up this excess space,the channel membe is provided. To normally force this channel member toits outward position, I have provided a pair of leaf springs 8, whichsprings are secured at one of their ends by means of rivets, to thechannel member, as is shown at 9 and which are bowed intermediate theirends to engage the side rail framework 41-, as is shown at 10. Theopposite end of each of the springs is free to move and consequentlythese springs will be depressed when the channel members are movedtoward the screen to make them of a width to pass through the windowopening. Immediately upon release, the springs act to force thesechannel members outwardly to thereby completely fill the opening withinthe window frame.

In order to lock the channel member in its outward position, to preventremoval of the screen from the outside, I have provided a lockingelement of the type shown at 11. This element comprises a body providedwith a pair of longitudinal slots 12 and a bayonet slot 18. The slots 12are designed to cooperate with pins or rivets 14.- rigidly carried bythe side of the channel member in such manner that the locking elementis slidable in connection therewith. The bayonet slot 13 is designed tocooperate with the pin or screw 7, so that'when the locking element isin the position shown in Fig. 1, the channel member may be movedlaterally back and forth, whereas when this locking element is moved tothe position shown in Fig. 1, the pin 7 is engaged by the finger portion15 of the locking element to prevent movement of the channel member.Thus, after the screen has been placed in its position, the lockingelements may be moved to the positions shown in Fig. 1, whereby thescreen is securely locked in this position. When its removal is desired,these locking elements may be moved to the position shown in Fig. 4E,whereupon lateral movement inwardly of the channel member 5 ispermitted.

From the foregoing description, it will be apparent that I have provideda type of screen which very readily be placed in its applied position tocompletely fill the normal Window opening. This screen may be applied bycompressing the springs 8 to permit the rectangular body, including thechannel members 5, to enter the Window opening and upon release, thesesprings move the channel element outwardly a distance to properly fit inposition. This channel element may then be locked by moving the lockingelements to the position shown in Fig. 1 and after these lockingelements are disposed on the inside of the room, it will be apparentthat removal of the screen from the exterior of the house, is renderedimpossible.

What I claim, is:

In a window screen, a rectangular body framework, a U-shaped channelmember slidably embracing one side of said framework, said member havinga slot in one of its legs, a pin carried by the side rail of saidframework and projecting through said slot, a locking element carried bysaid member arranged to slide at right angles to said slot, said elementbeing provided With a bayonet slot whereby said pin may be engaged tohold said member and said frame immovable.

In testimony whereof I affix my signature in presence of tWo Witnesses.

PETER J. WOLFE.

Vitnesses VVAL' 1n: E. L. Boon, A. L. PHELPS.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

